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    • 85. 发明授权
    • Electronic apparatus with audible annunciator and alarm lamp
    • 带有声音报警器和报警灯的电子设备
    • US4462030A
    • 1984-07-24
    • US329387
    • 1981-12-10
    • Daisuke Ishii
    • Daisuke Ishii
    • G08B21/00G08B3/10G08B7/00G08B23/00H04Q7/14G08B5/22
    • G08B3/1025
    • A portable electronic apparatus has an oscillator for generating a signal. An audible annunciator has an inductance element for generating an audible annunciating signal in response to a first actuation signal of a first frequency. A light emitting means is turned on and off by counter-electromotive forces developed in the inductance element in response to one of the first actuation signal and a second actuation signal of a second frequency. A frequency divider is coupled to the audible annunciator and to the light emitting means for frequency-dividing the oscillation signal to provide the first and second actuation signals and for selectively generating one of these actuation signals in response to a control signal.
    • 便携式电子设备具有用于产生信号的振荡器。 声音信号器具有电感元件,用于响应于第一频率的第一致动信号产生可听的信号信号。 响应于第一驱动信号和第二频率的第二致动信号之一,通过在电感元件中产生的反电动势来使发光装置接通和断开。 分频器耦合到可听报警器和发光装置,用于对振荡信号进行分频以提供第一和第二致动信号,并且响应于控制信号选择性地产生这些致动信号之一。